Repeat Process To Check Contents of File on HTTP Server?

[Björnke von Gierke]

I suggest to use the "put" command with the "url" keyword, using a  
"send in time" structure:

on mouseUp
   checkWebsite ""
end mouseUp

on checkWebsite thePrev
   put line -1 of url "http://yoursite.com/yourfile" into theCurrent
   if thePrev <> theCurrent then
     --do your stuff here, it changed!
   end if
   send checkWebsite theCurrent to me in 4.5 seconds
   --slightly less then 5 seconds, assuming the download of the whole  
file takes ca. 0.5 seconds
end checkWebsite


Be aware that clicking the button twice would have your code execute  
twice every 4.5 seconds, so maybe you should check the pendingMessages  
somehwere. The docu on that property also shows on how to stop the  
repeating.

On 7 May 2009, at 05:43, John Patten wrote:

> Hi All!
>
> I'm making a little web browser client that needs to check the  
> contents of a file on a web server. It needs to be able to do this  
> every 5 seconds or so in the background, and then if the contents  
> changes in the last line of the file it is checking, it starts  
> another process in the background. Can this be done in Rev? Would I  
> use two stacks, one as the browser and one with the repeat loop?
>
> I'm at a loss for what this might look like in a script?
>
> Thanks in Advance!
>
>
> John Patten
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